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Finding the Fourth Proportional to 399.44, 599.24 and 226.19

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Solution

The fourth proportional to 399.44, 599.24 and 226.19 is: 339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.44 : 599.24 = 226.19 : x
  2. Step 2: Convert to fraction form
    399.44/599.24 = 226.19/x
  3. Step 3: Cross multiply
    399.44x = 599.24 × 226.19
  4. Step 4: Simplify right side
    399.44x = 135,537.97
  5. Step 5: Solve for x
    x = 135,537.97/399.44
  6. Step 6: Final answer
    x = 339.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.